    html,body{
      width:100%;
      height:100%;
    }
    body {
        margin-left: 0px;
        margin-top: 0px;
        margin-right: 0px;
        margin-bottom: 0px;
    }
    .ztree li span.button.add {
      margin-left: 2px;
      margin-right: -1px;
      background-position: -144px 0;
      vertical-align: top;
      *vertical-align: top
    }
    .ztree li span.button.ico_docu{
      margin-right:2px;
      background-position:-110px -16px;
      vertical-align:top;
      *vertical-align:middle
      })
